Dunckel, J., & Parnham, E. (1985). The business guide to effective speaking: Making presentations, using audio-visuals and dealing with the media. Kogan Page.
Цитирование в стиле Чикаго (17-е изд.)Dunckel, Jacqueline, и Elizabeth Parnham. The Business Guide to Effective Speaking: Making Presentations, Using Audio-visuals and Dealing with the Media. London: Kogan Page, 1985.
Цитирование MLA (9-е изд.)Dunckel, Jacqueline, и Elizabeth Parnham. The Business Guide to Effective Speaking: Making Presentations, Using Audio-visuals and Dealing with the Media. Kogan Page, 1985.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.